1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*	Copyright (c) 1988 AT&T	*/
23/*	  All Rights Reserved  	*/
24
25
26/*
27 *      Copyright (c) 1997, by Sun Microsystems, Inc.
28 *      All rights reserved.
29 */
30
31#pragma ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.1	*/
32
33/*LINTLIBRARY*/
34
35#include <sys/types.h>
36#include "utility.h"
37
38#define	first(f)	(0)
39#define	last(f)		(f->maxpage - 1)
40
41/* next - return next page after current page(cyclic) */
42static int
43next(FORM *f)
44{
45	int p = P(f);
46
47	if (++p > last(f))
48		p = first(f);
49	return (p);
50}
51
52/* prev - return previous page before current page(cyclic) */
53static int
54prev(FORM *f)
55{
56	int p = P(f);
57
58	if (--p < first(f))
59		p = last(f);
60	return (p);
61}
62
63int
64_next_page(FORM *f)
65{
66	return (_set_form_page(f, next(f), (FIELD *) 0));
67}
68
69int
70_prev_page(FORM *f)
71{
72	return (_set_form_page(f, prev(f), (FIELD *) 0));
73}
74
75int
76_first_page(FORM *f)
77{
78	return (_set_form_page(f, first(f), (FIELD *) 0));
79}
80
81int
82_last_page(FORM *f)
83{
84	return (_set_form_page(f, last(f), (FIELD *) 0));
85}
86